Production of Gamma Radiation in Dense Interstellar Clouds by Cosmic-Ray Interactions

Abstract

view Abstract Citations (63) References (29) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Production of Gamma Radiation in Dense Interstellar Clouds by Cosmic-Ray Interactions Black, John H. ; Fazio, G. G. Abstract Dense interstellar clouds can be detectable discrete sources of -rays (>100 MeV) resulting from cosmic-ray interactions with the gas in the cloud, particularly molecular hydrogen. If the distance to the cloud is known, its mass can be determined from the -ray intensity. We propose that the p Oph dust cloud is the `y-ray source near = 352 b" - +16 observed by three different groups, and that the -ray source Sgr - 1 is associated with the dense dark cloud in Corona Austrina. The galactic-center cloud complex could contribute to the source of excess -rays observed in that region. Several other galactic sources are suggested. Subject headings:cosmic rays - gamma rays - interstellar matter Publication: The Astrophysical Journal Pub Date: October 1973 DOI: 10.1086/181310 Bibcode: 1973ApJ...185L...7B full text sources ADS |